This black shoreline is made up of exploded lava particles.

Half-drowned wooden stumps and stone blocks are all that remain of a Victorian landing that was destroyed by storms.

Regency-era excess on the English Coast.

"Portugal's Stonehenge" is made up of nut-like stones aligned with the heavens.

A 16th century chapel decorated with bones, skulls, and entire bodies hanging from the wall.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

For more than a century, Parisians have come for affordable dishes in a grand converted train station.

An opal mining town in the middle of Australia where people live, worship, and shop underground.

Louise Bourgeois' 30-foot-tall steel spider sculpture.

The mastermind behind this palatial hotel perished on the Titanic weeks before its grand opening.

A massive Montreal stadium that has seen nothing but trouble since its inception.

A Montreal deli that was so beloved that it was allowed to circumvent their laws of language.

Two thirds of this Montreal neon icon has survived to flash another day.

A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.

The only example of a Paris Métro sign in use at a subway station outside of the French capital. 

A little sculpture with a large wardrobe.

This medieval tower is all that remains of the castle where Joan of Arc was held before being burned at the stake.

Noirish green neon marks the location of one of the oldest private detective agencies in France.

The video game-themed street art first popped up in the French city.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

This demon atop the Notre-Dame de Paris looks utterly bored.

This impressive working clock made of 16,000 plants changes its flowers twice a year.